The MC28 manual is a little clearer...
Using this image, if the spacer's stil there, then yes, I expect you only need #12 (#13 on the MC21 diagram -- the rubber insert the pushes into the frame), #14 (the outer cap - #17 on the MC21 diagram) and the nut #28 (#36 on the MC21 diagram) to secure it all in place.
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Andy.
NSR-WORLD.COM
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